Soft-start/stop sump pump controller

a sump pump controller and soft-start technology, applied in the direction of machines/engines, positive-displacement liquid engines, dynamo-electric converter control, etc., can solve the problems of affecting the operation of the sump pump, and affecting the operation of the pump. , to achieve the effect of reducing the stress on the motor bearings, reducing the inrush start up current, and reducing the stress on the start up impa

Inactive Publication Date: 2010-07-13
PANOSH RICHARD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]Control of the sump pump motor is by means of an alternistor. The alternistor is a solid-state switch similar to a triac but specifically designed to control inductive loads. The alternistor is triggered by the microprocessor each half cycle of the line voltage to provide both a soft-start and a soft-stop. The soft-start feature helps to reduce the inrush start up current, reduces stress on the motor bearings and

Problems solved by technology

This alarm might indicate that the pump is not turning, the impeller is broken, or the discharge line is blocked.
However, the upper water level alarm will also signal a failure as the sump pit fills up with water.
A more serious condition occurs if the alternistor fails in a shorted state

Method used

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  • Soft-start/stop sump pump controller
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  • Soft-start/stop sump pump controller

Examples

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Embodiment Construction

[0029]Referring to FIGS. 1 and 2, a controller 10 is connected to a sump pump 12 having contacts 13, 18 positioned within a sump pit 11. The sump pump 12 may be a submersible pump as depicted, or an upright pedestal pump of the type commonly known in the art, and is connected to a discharge pipe 14 through which water is discharged from a basement. Positioned along the discharge pipe 14 is a one way check valve 21 that prevents water in the discharge pipe 14 from flowing backwards into the sump pit 11 after the sump pump 12 has been turned off. Contained within controller 10 is a piezoresistive gauge pressure sensor 30.

[0030]Extending into the sump pit 11 and below the level of the water 20 is one end of a pressure tube 22 the other end of which is connected to the piezoresistive gauge pressure sensor 30 in the controller 10. The piezoresistive gauge pressure sensor 30 measures the pressure within the tube 22 that is greater than one atmosphere of air pressure and produces an output...

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PUM

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Abstract

A sump pump control includes a microprocessor that sends a trigger pulse to an alternistor to turn the alternistor on and connect the sump pump to an NC power source. The microprocessor also monitors the power source to find a positive/negative crossover point. The microprocessor adjusts the trigger to apply full power to the pump motor during normal operation and delays the trigger to apply reduced power for a soft start and soft stop. The microprocessor also triggers an alarm in the event of failure of the device, including failure of the alternistor or the microprocessor.

Description

[0001]The present invention relates to a solid state control for a sump pump, and in particular to a control that provides a soft start, a soft stop, and a warning in the event of various forms of failure, including failure of the controller itself.BACKGROUND OF THE INVENTION[0002]Sump pumps are required in all present and new construction that is below grade level. The sump pump prevents the build up of water around the foundation. This prevents the water pressure from building up and cracking the foundation or leaking into the basement and causing water damage. To prevent this damage, perforated drain tile is placed around the basement footing which allows the water to seep into the tile and gravity feed to a sump pit. The sump pit contains a pump that is used to discharge the water away from the foundation. In some construction, an additional sump pump may be provided to pump water from a washing machine into the main sanitary sewer system. Generally, sump pump pits are from 15 t...

Claims

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Application Information

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IPC IPC(8): H02P1/16
CPCF04B49/065H02P1/42
Inventor PANOSH, RICHARD
Owner PANOSH RICHARD
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